Do animals detect genetic background?

Adumbration Observation:

It is quite evident that most animals have heightened sensitivity of their environs and other organisms. Likewise they can detect the chemical signals of others, and react to them. They can also use homing instincts from thousands of miles away.

At times, it seems they can also assess the background of another organism. They make a decision whether the other is compatible or not. And whether a young one is in good condition for survival.

 It seems that we are not so skilled at that. Sometimes, an animal can sense our capabilities. For instance, some can detect whether a human has ever rode on an animal before. They sense that out. So, the animal decides whether to accommodate someone for riding, or if they sense inexperience, perhaps the person's family line and genetics has never rode an animal before, then they may not be accommodating based on their sensitive detection. So, they are sensitive enough to sense out genetic dispositions and traits of which we might not be aware.